Surface-emission unit and method for producing the same
a technology of emission unit and surface, which is applied in the direction of lighting support devices, instruments, condensers, etc., can solve the problem of increasing the amount of bonding resin, and achieve the effect of preventing linear irregularity in brightness
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first embodiment
[0035]FIG. 1 shows a configuration example of a light-emission element module 1 used in a surface-emission unit in the present invention, on which a light-emission element is mounted. FIG. 1 is a cross-sectional view taken in a direction perpendicular to a substrate of the light-emission element module 1 to which this embodiment is applied. While a plurality of light-emission element parts 2 each having an LED as a light-emission element are arranged in one or more columns, on a substrate 11, FIG. 1 shows one focused light-emission element part 2. In addition, in the following drawings, an essential part is emphasized occasionally, and a dimension ratio of each component on the drawings does not always coincide with a real dimension ratio thereof.
[0036]The light-emission element part 2 is configured in such a manner that one or more LED chips (not shown) are mounted on a component substrate 3 made of ceramics or the like, and electrically connected to the component substrate 3 by a ...
second embodiment
[0049]Next, a description will be made of a method for producing the light-emission element module 1. FIGS. 3 and 4 are views showing steps for producing the light-emission element module 1 shown in FIG. 1.
[0050]First, the light-emission element part 2, the substrate 11, and the optical lens 21 are prepared. Here, the substrate 11 is a resin substrate in which an epoxy resin and glass fiber are mixed, for example and FIG. 3 is a cross-sectional view of the substrate 11. The wiring 13 is formed on both surfaces of the substrate 11. The wiring 13 may be made of a material such as copper, nickel, or gold. The wiring 13 is composed of the land part 13a formed on one surface of the substrate 11 to mount the light-emission element part 2, and the wiring part 13b formed on both surfaces of the substrate 11. In addition, by providing the wiring part 13b on the whole other surface on which the light-emission element part 2 is not mounted, the radiation property of the substrate 11 is improve...
third embodiment
[0061]When the light-emission element module 1 can be used as a surface-emission unit used as a backlight of a liquid crystal television or a liquid crystal monitor, or a lighting equipment, by itself or combining a plurality of the same kind or different kind of light-emission element modules and connecting them in vertical and horizontal directions. In this surface-emission unit, a light emission region corresponding to a screen size can be ensured by arranging the light-emission element parts each having the light-emission element two-dimensionally in the shape of a matrix.
[0062]FIGS. 5 to 12 show configuration examples of the surface-emission unit, which show arrangement relationships among the light-emission element part 2, the optical lens 21, and the respective poles of the pole part 23 of the optical lens and the bonding resin 31. A description will be made of linear irregularity in brightness generated when the light-emission element is turned on, with reference to FIGS. 5 ...
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